Xeon E7 8830 's Advantages
Larger L3 cache size (24MB vs 8.25MB)
Lower TDP (105W vs 120W)
Intel Xeon W 2125 's Advantages
Released 6 years and 4 months late
Higher specification of memory (2666 vs 1333)
Higher base frequency (4GHz vs 2.133GHz)
More modern manufacturing process (14nm vs 32nm)